#B33139#B33139

#B33139 is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.5% C 0.166 H 22.1°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#B33139
RGB	rgb(179, 49, 57)
HSL	hsl(356, 57%, 45%)
HSV	hsv(356, 73%, 70%)
CMYK	cmyk(0%, 72.6%, 68.2%, 29.8%)
CIE-LAB	lab(41.34, 52.35, 26.65)
CIE-LCH	lch(41.34, 58.74, 26.98°)
OKLab	oklab(51.46% 0.1539 0.0624)
OKLCH	oklch(51.46% 0.166 22.1)
XYZ	xyz(20.4295, 12.0788, 5.1258)
Luminance	0.1208 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33139 #31B3AB

analogous

#B3317A #B33139 #B36A31

triadic

#B33139 #39B331 #3139B3

tetradic

#B33139 #7AB331 #31B3AB #6A31B3

square

#B33139 #7AB331 #31B3AB #6A31B3

split-complementary

#B33139 #31B36A #317AB3

monochromatic

#53171A #83242A #B33139 #D05259 #DD8287

Accessibility & contrast

On white

6.15

#B33139 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#B33139 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33139

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33139	#FFFFFF	#000000	##FFFFFF
##B33139	1.00	6.15	3.42	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#565038

Deuteranopia (green-blind)

#766C35

Tritanopia (blue-blind)

#C50035

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b33139;
/* rgb */ color: rgb(179, 49, 57);
/* oklch */ color: oklch(51.5% 0.166 22.1);

Tailwind

colors: {
  custom: {
    50: '#d1736f',
    500: '#b33139',
    950: '#000000',
  },
}

SCSS

$custom: #b33139;
$custom-light: #d1736f;
$custom-dark: #000000;

JSON

{
  "hex": "#b33139",
  "rgb": {
    "r": 179,
    "g": 49,
    "b": 57
  },
  "hsl": {
    "h": 356.308,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.5146,
    "c": 0.16608,
    "h": 22.1
  },
  "luminance": 0.12076
}

Semantic roles & 50–950 ramp

primary

#B33139

secondary

#7AC6C1

accent

#E0D748

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B33139

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →